earthangeljenny,
Just remember that the only person you can change is YOU. Unfortunately - you are in close quarters with someone who right now seems unwilling to change, and sad and frustrating as that may be...you can't make him change, start the program or even take his supplements (although grinding them up into his frosted flakes does seem appealing...LOL...I think the fish oil one would make a HUGE mess

).
You said that you could already see the positivedifferences that this program has been making for you - use that to fuel your desire to continue it. You deserve a better, happier, healthier life...don't let anyone take that away from you!!!
Possibly, POSSIBLY, the actions speak louder than words scenario will work in your case too! Maybe he will see your improvements and want to make some for himself.
Don't hamper your progress by arguing with and being frustrated at him though...work on fixing you. You deserve it! You might want to read some about codependency too because your suggesting that you quit, is playing into his negative behavior. I finished a great book called "Codependent No More" by Melanie (or Melody?) Beattie. I used to think that was just for families of drug and alcohol addicts, but truly it's for anyone who changes their behavior to accomodate someone else's bad attitude/choices/whatever.
Blessings,
Dawn